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Theodoric II
THEODERICUS D[EI] G[RATIA] DUX LOTH[RINGEN] ET MARCHIO
Duke of Lorraine
Reign	1070–1115
Predecessor	Gerhard, Duke of Lorraine
Successor	Simon I, Duke of Lorraine
Died	(1115-12-30)30 December 1115
Spouse	Hedwig of Formbach Gertrude of Flanders
Issue	Simon I, Duke of Lorraine Thierry, Count of Flanders andmore
House	Metz
Father	Gerhard
Mother	Hedwige of Namur

Theodoric II (died 30 December 1115), calledthe Valiant, was theDuke of Lorraine from 1070 to his death.^[1] He was the son and successor ofGerhard and Hedwige of Namur. He is sometimes numberedTheodoric I if the Dukes of the House ofArdennes, who ruled inUpper Lorraine from 959 to 1033, are ignored in favour of thedukes of Lower Lorraine as predecessors of the later Dukes of Lorraine.

In fact,Sophia, the daughter of DukeFrederick II of the House of Ardennes, who had inherited thecounties of Bar andMontbéliard, had a husband namedLouis, who contested the succession. In order to receive the support of his brother, Theodoric gave his brother theCounty of Vaudémont and convened an assembly of nobles, who elected him duke over Louis. Soon Louis was dead, but his son,Theodoric II of Bar, claimed the succession anyway. However, EmperorHenry IV confirmed Theodoric the Valiant in the duchy. Probably, for this reason, Theodoric remained faithful to the emperors throughout his rule. He fought theSaxons while they were at war with the Emperor between 1070 and 1078 and he generally opposed thepopesGregory VII andUrban II when they were in conflict with the Emperor.

In 1095, he planned to take up theCross (i.e., go onCrusade, specifically theFirst), but his ill health provoked him to drop out, nevertheless convincing his barons to go east. Thereafter, he took little part in imperial affairs, preferring not to intervene between Henry IV and his sonHenry, or againstLothair of Supplinburg,duke of Saxony.

His first wife wasHedwig (died 1085 or 1090),^[2] daughter of Frederick, count ofFormbach. They married around 1075 and had the following issue:

• Simon (1076–1138), his successor asDuke of Lorraine, married toAdelaide of Leuven (d. 1158),^[3] daughter of his stepmotherGertrude andHenry III, Count of Leuven.
• Gertrude (died 1144), marriedFloris II of Holland

His second wife wasGertrude of Flanders (c.1070–1117),^[4] daughter ofRobert I of Flanders andGertrude of Saxony. She was the widow ofHenry III, Count of Leuven (d. 1095), with four daughters. They married in 1106^[4] and had:

• Thierry of Alsace "Theodoric" ( – 1168), lord ofBitche and alsoCount of Flanders from 1128. Married toSibylla of Anjou^[5]
• Henry I (died 1165),bishop of Toul
• Ida, married Sigefroy (died 1104), count ofBurghausen
• Ermengarde, married Bernard de Brancion
• Gisela, married Frederick, count ofSaarbrücken

• House of Lorraine

• Bogdan, Henry (2007).La Lorraine des ducs (in French). Perrin.
• Gislebertus of Mons (2005).Chronicle of Hainaut. Translated by Napran, Laura. The Boydell Press.

Theodoric II, Duke of Lorraine House of Metz  Died: 30 December 1115
Preceded by Gerhard	Duke of Lorraine 1070–1115	Succeeded by Simon I

• 11th-century births
• 1115 deaths
• House of Metz
• Dukes of Upper Lorraine

• Articles needing additional references from November 2016
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• Short description matches Wikidata
• CS1 French-language sources (fr)
• Year of birth unknown